misseri (noun n.) [°-s; -] ‘season...’

• Ólhelg Lv 9^I/4 — misseri ‘season’1029
• ÞjóðA Sex 19^II/7 — missari ‘seasons’1065
• Ív Sig 3^II/8 — misseri ‘winters’1140
• KrákÁsl Lv 7^VIII (Ragn 18)/3 — misseri ‘one half-year’?

elements in compounds